Nikeli ma le nikeli u'umea fa'aeletise
Ni307-7
GB/T ENi6152
AWS A5.11 ENiCrFe-7
Faʻamatalaga: Ni307-7 o se eletise faʻavae nickel faʻatasi ai ma le paʻu sodium maualalo-hydrogen.Fa'aaoga le DCEP (fa'atonu eletise eletiselelei).E sili ona lelei le fa'auluuluga fa'atasi ma le fa'amumu arc mautu, fa'aitiitia le spatter, faigofie ona aveese le slag,ma uelo matagofie.O le u'amea teuina e mautu mea fa'ainisinia ma lelei tete'e corrosion imaualuga-vevela oxidizing ma le sulfur-i ai atemosifia.
Fa'aoga: Fa'aaogaina i le inisinia faaniukilia, sulfuric acid, nitric acid ma le hydrogen fluorine mea faigaluega, e pei o le nickel 690 alloy, ASTM B166, B167, b168, ma isi, e mafai fo'i ona fa'aoga mo le u'amea nickel-chromium iron ma le uamea ma le fa'a'ele'ele. -e fa'asaga i luga o le sila.
Su'ega vaila'au o u'amea u'amea(%):
| C | Mn | Fe | Si | Ni | Cr |
| ≤0.05 | ≤5.0 | 7.0 ~ 12.0 | ≤0.8 | ≥50.0 | 28.0 ~ 31.5 |
| Cu | Mo | Nb | S | P | Isi |
| ≤0.5 | ≤0.5 | 1.0 ~ 2.5 | ≤0.015 | ≤0.020 | ≤0.5 |
Tulaga fa'ainisinia o u'amea u'amea:
| Su'ega mea | Malosi fa'asa Mpa | Tuuina atu le malosi Mpa | Fa'aumiumi % |
| Fa'amaonia | ≥550 | ≥360 | ≥27 |
Fautuaina le taimi nei:
| u'amea lautele （mm） | 2.5 | 3.2 | 4.0 |
| Uu fa'asolo （A） | 60 ~ 90 | 80 ~ 110 | 110 ~ 150 |
Fa'aaliga:
1. E tatau ona tao le eletise mo le 1 itula i le 300 ℃ aʻo leʻi faʻaogaina le faʻaogaina;
2. E taua tele le fa'amamāina o le ea, suau'u, vai, ma mea leaga i luga o vaega uelo a'o le'i uelo.Taumafai e fa'aoga se arc pupuu e uelo ai.
